Beavertail Hill State Park, Montana, United States

Color Zone: Light GrayIs Camping Allowed? YesEntrance Fee? NoDescription: Beavertail Hill State Park is in a valley, near Interstate 90. The headlights can sometimes be a nuisance, and the mountains obstruct some of the sky. But they also block any light pollution that may have been visible from Missoula, leaving the rest of the sky very dark. There are too many trees in the campground, so park near the pond or on a small pullout on Cook Lane above to observe instead.